Editing Midnight Taint Rules (section)

==Dark Energies==
:  Whenever a living creature with the Magecraft feat would gain taint, regardless of whether it is a spirit or a corporeal creature, something far more insidious happens. He instead gains a pool of taint points that are very similar to spell energy points. If he already has a pool of taint points and would gain taint, the pool of taint points instead increases. In the discussion below, the term “tainted channeler” refers to any creature with the Magecraft feat who has a pool of taint points. For all purposes dependent upon a creature’s taint level, a channeler’s effective taint is equal to the maximum size of his taint pool.
:  Taint is not without benefits for tainted channelers. First of all, while in a tainted area, a tainted channeler may use his pool of taint points as if they were spell energy points. 
:  Outside of a tainted area, if a tainted channeler wishes to use taint instead of spell energy to power a spell, the cost in taint is doubled. For example, sleep (a 1st-level spell) can be cast using one point of taint within a tainted area, or two points in a non-tainted area. A tainted channeler may mix and match these methods of payment, so a channeler casting hideous laughter, a 2nd-level spell, could pay for it in a tainted area with 1 spell energy point and 1 taint point; in a non-tainted area this same approach would cost the channeler 1 spell energy point and 2 taint points.